32 results about "Dental Restoration Failure" patented technology

Disclosed is a method for planning, visualizing, and/or optimizing dental restoration on at least a part of the pre-prepared teeth of a patient, wherein said method comprises the steps of:

• • providing at least one 3D digital model of at least a part of the pre-prepared teeth;
  • designing at least one dental restoration CAD model based on the 3D digital model of at least a part of the pre-prepared teeth;
  • providing at least one 3D digital model of at least a part of the prepared teeth, where the prepared teeth are provided by preparing the pre-prepared teeth by dental restorative work, at least partly based on the dental restoration CAD model; and
  • aligning the 3D models of the pre-prepared and the prepared teeth.

Disclosed is a method for designing a virtual mould used for manufacturing a corresponding physical mould adapted to be used in manufacturing of a dental restoration for a patient, wherein the method includes obtaining a 3D representation of the patient's set of teeth; virtually designing at least a first layer and a second layer of the dental restoration, where the first layer is part of a first portion of the dental restoration, and; and virtually designing the mould, where the inside surface of the mould is adapted to match the combination of at first portion and the second layer, where the inside surface of the mould corresponds to the shape of the dental restoration, where virtually designing the mould comprises designing a virtual retention structure of the mould.

A method for manufacturing a dental restoration for a patient, where the method includes: obtaining a 3D scan of at least a restoration site of the patient's mouth, where the manufactured dental restoration is adapted for fitting to the restoration site; obtaining a CAD design of the dental restoration; milling the restoration from a material, where the restoration is milled both on an inside surface configured for fitting to the shape of the restoration site of the patient's mouth and on an outside surface, where the milling is according to the obtained CAD design; transferring the milled restoration to a retention means providing a fixed known position of the restoration relative to a post-processing machinery, where the restoration is retained on the inside surface, such that the outside surface of the restoration is approachable/free/accessible; and performing post-processing of the outside surface of the restoration.

The invention belongs to the technical field of dental restoration, and discloses a dental chair-side implant restoration digitization implementation method. The method comprises the following steps: scanning and acquiring internal formation of the mouth cavity of a patient by adopting in-mouth scanning equipment to realize data acquisition; transmitting the acquired data into a dental restoration system; forming a three-dimensional mouth cavity model capable of being subjected to edition processing and restoration design in the dental restoration system based on the acquired data to further carry out data matching between an implant database and the acquired data in the dental restoration system; forming an analog image of the implant in the mouth of the patient in the three-dimensional mouth cavity model at the same time; carrying out restoration design of a personalized base and a dental crown of the patient on the formed three-dimensional mouth cavity model to form an implant-supported prosthesis; transmitting the data of the formed implant-supported prosthesis into processing equipment to realize formation of the implant-supported prosthesis; processing the formed implant-supported prosthesis and directly bringing into the mouth of the patient to realize implant restoration in the mouth of the patient. The dental chair-side implant restoration digitization implementation method is suitable for being applied to the field of dental restoration.

A dental restoration system is disclosed. A dental restoration system includes an implant, retention component, dental component and driver tool. The retention component is seatable in a retention chamber of the implant. The retention component includes a driver section for interfacing with a driving head of the driver tool and a dental component engagement section with a threaded surface. The dental component includes a retention component interface surface with threads. The dental component engages the retention component via the threaded surface interlocking with the threads of the retention component interface surface when the dental component is inserted in the implant. The driver tool is used to rotate the retention component to engage the dental component apically. The retention component contacts the retention component wall and the dental component contacts an annular shoulder of the implant when the dental component is fully attached to the implant.

The invention provides a zirconia ceramic material applied to dental restoration. The zirconia ceramic material applied to the dental restoration is prepared from the following components by mole percentage: 1.5-4% of Nb2O5, 1.5-4% of SnO2 and the balance of ZrO2. The invention further provides a preparation method of the zirconia ceramic material. The preparation method comprises the following steps of (1), carrying out ball-milling on Nb2O5 powder, SnO2 powder and ZrO2 powder, uniformly mixing and screening to obtain a mixed powder; (2), carrying out isostatic cool pressing formation to obtain powder pressed blanks; and (3) carrying out pre-sintering and sintering processes to obtain the zirconia ceramic material applied to the dental restoration. According to the zirconia ceramic material applied to the dental restoration, which is disclosed by the invention, the biocompatibility is good, the health-harmful problems such as sensitivity do not exist, the mechanical property is excellent, the actual effect resistance is good, the phase change from a tetragonal phase to a monoclinic phase does not generate in a hygrothermal environment of an oral cavity, no clinic risk of exfoliation exists, and the zirconia ceramic material can be widely suitable for manufacturing dental restoration prosthesis.

The invention discloses a preparation method of a dental restoration modified nano-hydroxyapatite composite material and belongs to the field of biomedical materials. The dental restoration modified nano-hydroxyapatite composite material is prepared by taking soluble calcium salt and soluble phosphate salt as raw materials and compound amino acids and/or graphene oxide as a modification means through a hydrothermal method. The dental restoration modified nano-hydroxyapatite composite material is structurally characterized in an enamel-like nanorod structure with a particle diameter of 3-30 nmand a particle length of 50-300 nm and is low in degree of crystallinity. The dental restoration modified nano-hydroxyapatite composite material has the advantages of being good in biosecurity and high in biocompatibility, achieving good restoration effects on surface decalcification and deep decalcification of enamel or dentin and forming new remineralized restoration layers by nucleation on thesurface of decalcified enamel or dentin, thereby improving the surface hardness and the antibacterial performance of teeth and providing new possibility for clinical tooth remineralization restoration.

The invention relates to the field of dental restoration, in particular to a ceramic tooth 3D printing production method in a dental restoration industry. The method includes a first step: scanning isperformed; a second step: a ceramic tooth machining center designs 3D ceramic tooth simulation model files; a third step: a 3D printer produces a prototype of a to-be-restored body required by a doctor; a fourth step: after the printing is completed, a support is removed from the prototype of the to-be-restored body, and the prototype of the to-be-restored body is placed in a crystallization furnace for sintering and degreasing; and a fifth step: the sintered prototype of the to-be-restored body is subjected to soaking dyeing or coloring and then undergoes high-temperature crystal forming, sothat the whole product is manufactured. The ceramic tooth 3D printing production method in the dental restoration industry has the advantages that the manufacturing cycle is short, the quality stability is high, the cost is greatly reduced, the industrial mass production can be performed, and the digital production level is high.

A method for designing a virtual dental restoration for manufacturing a dental restoration for a patient, said dental restoration including an anatomy portion and a sub-gingival portion, wherein the method includes: obtaining a virtual anatomy surface expressing a target shape of the anatomy portion of the dental restoration; and creating a virtual sub-gingival surface for the sub-gingival portion of the dental restoration; where the created virtual sub-gingival surface is shaped such that it contacts the virtual anatomy surface.

The invention discloses a single-component photocuring composite with the fluoride ion release property for dental restoration and application of the composite. The raw materials used for preparing the single-component photocuring composite with the fluoride ion release property for dental restoration comprise water soluble or at least partially water soluble acid molecule structure-containing polymeric resin monomers or oligomer or a mixture thereof, glass ionomer cement filler with the fluoride ion release property and a photocuring polymerization initiating system. The photocuring composite is the single-component photocuring composite, use is convenient, the fluoride ion release property is achieved, and meanwhile the mechanical and physical properties are achieved; the composite can be used as gasket materials under dental adhesives and other dental restoration materials, pit and fissure sealing materials on surfaces of teeth, tooth filling repair/restoration materials, post-core composition materials for dental crown restoration, root canal orifice sealing materials and photocuring orthodontic cement bonding materials and used for other dental treatment and restoration application.

A process for improving the stability of yttrium stabilised zirconia for dental restorations comprising yttrium stabilised zirconia, the dental restorations are veneered with a dental ceramic veneering material wherein—the dental restoration comprising yttrium stabilised zirconia and to be veneered is provided;—the dental ceramic veneering material is applied to the dental restoration by an aerosol which contains the dental ceramic veneering material and substantially water-free propellant;—the resulting arrangement is fired to a resulting veneered dental restoration.

A combination of a dental restoration and a plurality of attachment members is disclosed. The dental restoration includes a plurality of support members configured to be releasably attached to an attachment member. Each attachment member includes a first support surface facing in the coronal direction of the attachment member for supporting a corresponding support member, and a second support surface facing in the apical direction of the attachment member and towards the longitudinal axis of the support member and being configured for engagement with a support surface of a dental fixture. Each attachment member includes an attachment portion at a coronal portion for receiving a fastening member for releasably attaching one of the support members. The first support surface has an angle relative the longitudinal axis of the attachment member measured from its apical towards its coronal end that is larger than a corresponding angle of the second support surface.

Wound-healing unit for connection to a dental implant during a wound-healing phase of a dental restoration procedure, comprising a wound-healing element (10) intended to be surrounded at least partially by gum (63), and an abutment (1) intended to be fixed in an implant (60), characterized in that the wound-healing element comprises a lateral surface (13), which is intended to be integrated within gum in order to shape the gum during the wound-healing thereof, and an end surface (14), a part of the lateral surface (13) and of the end surface (14) forming a protruding surface, which is intended to remain outside the gum and is asymmetrical with respect to at least a perpendicular median plane, and in that the abutment comprises a longitudinal axis (L) along its entire length, for alignment with the axis of an implant (60).

The invention discloses a dental restoration material for treating the dentin hypersensitiveness. The dental restoration material for treating the dentin hypersensitiveness is formed by amphiphilic functional polypeptide firstly smeared on the surface of a dentin and nano-hydroxyapatite subsequently smeared on the polypeptide processed surface of the dentin; the polypeptides and the nano-hydroxyapatite are respectively independently packaged; and the amino acid sequence of the polypeptides is represented by SEQ ID NO:1, and serine in the amino acid sequence is phosphonated. Experiments prove that the material can successfully plug exposed dentinal tubules, and forms a compact hydroxyapatite mineral layer on the surface of the dentinal. The corrosion is difficult after the plugging, so the long term effectiveness of the plugging treatment is improved, and the material is very important to treat the dentin hypersensitiveness.

A dental instrument for shaping a dental restoration. The instrument includes an end with at least one undulating edge which eases the placement, manipulation, and sculpting of dental restoration.

The present invention relates to a method for exceeding a dental restoration whereby the method includes measurement of the distance between a restoration and an adjacent tooth, resizing the restoration as needed, and permanently affixing the restoration in the mouth of the patient.

The invention discloses a dental restoration material comprising a shell. The dental restoration material is characterized in that a capacity slot with the inner top wall internally provided with an adjustment chamber is disposed in the end face of the bottom of the shell; an adjustment frame is in sliding fit installation in the adjustment chamber; a first chute with the inner portion in slidingfit installation with a push rod is disposed in the end face of the bottom of the adjustment frame; the push rod with the bottom end fixedly provided with a compression plate extends into the capacityslot; guide grooves are symmetrically disposed in the inner walls of the left and right sides of the first chute; a guide block fixedly connected with the push rod is in sliding fit installation in the guide grooves; a first elastic piece is in top press fit installation in the guide groove at the bottom end of the guide block; a liquid push chamber is arranged in the top wall inside the first chute; a first piston block is in up and down sliding fit installation on the right side of the liquid push chamber.

The invention discloses a pure titanium bracket base for dental restoration. The pure titanium bracket base comprises a base and an artificial tooth mounting hole, wherein the artificial tooth mounting hole is formed in an edge of the body; the body is composed of a left arc-shaped part and a right arc-shaped part; the left arc-shaped part and the right arc-shaped part are detachably connected through a locking structure; the locking structure comprises a bolt part and a pin hole part adaptive to the bolt part; the bolt part and the pin hole part are fixed at the right end of the left arc-shaped part and the left end of the right arc-shaped part respectively. According to the pure titanium bracket base for the dental restoration, disclosed by the invention, the main body is innovatively designed to be formed by splicing the left arc-shaped part and the right arc-shaped part, and the main body can be easily separated into two parts with relatively small volumes when a patient takes offand wears the pure titanium bracket base by oneself, so that the pure titanium bracket base can be conveniently taken out from an oral cavity, gingivae and a tongue root are not easy to scratch and anausea feeling is not generated; the motivation of taking out a movable artificial tooth and cleaning of the patient is effectively improved.

Disclosed is a method for digitally designing a dental restoration, wherein a 3D representation of at least a part of the upper or lower jaw is obtained. The 3D representation represents at least a target site for placing the final restoration and at least one antagonist tooth opposing the target site. Furthermore a digital anatomy design of the restoration is provided. The digital anatomy is based at least on a dynamic occlusion and a relative offset of the planned restoration position. Accordingly, a restoration may be designed that does not interrupt the natural occlusion.